Namco and Konami have both registered trademarks for two new games. Xenosaga X and Castlevania: Dawn of Sorrow were registered with the United States Patent and Trademark Office April 4 and 5 respectively.

While no further details are available at the present, it is likely that these two trademarks concern the Xenosaga DS and Castlevania DS titles that were announced a few months back. Still, nothing about these trademarks will be certain until official announcements are made.